Page 34 - Updated SuDS Design & Evaluation Guide-Newham V3 Spreads

Holyoakes School
Modified Flow Routes
key
Step 2 – Modified Flow Route analysis
Concept Design Step 1 – Existing Flow Route analysis Holyoakes School The modified flow route analysis is the basis Once the modified flow routes have Concept Design
Proposed hard surfaces
Existing Flow Routes
Proposed soft surfaces

Proposed trees
demonstrated that runoff can flow
for low flow conveyance through the site,
key
predictably through the site, the arrangement
overflow arrangements and exceedance
Existing Contour
Existing contours
Proposed contours
routes when design criteria are exceeded.
of runoff collection, source control, site
Existing Flow Route
Existing surface ow
control, regional control, conveyance, storage
Surface ow
and final release from site can be designed.
Roof runo
Holyoakes School
Modified Flow Route
Modi ed ow routes Holyoakes School
Existing Flow Routes
Modified Flow Routes
key
Existing contours key
Proposed hard surfaces
Existing surface ow
Proposed soft surfaces

Proposed trees

Proposed contours

Surface ow
29 30
Roof runo

Modi ed ow routes

Existing landscape
features

Habitat
considerations Proposed

Historical drainage discharge to
existing ditch

Flow Route Analysis for Holyoakes School, Robert Bray Associates. Modified Flow Route Analysis for Holyoakes School, Robert Bray Associates.

Newham Council SuDS D & E Guide © 2020 McCloy Consulting & Robert Bray Associates Newham Council SuDS D & E Guide © 2020 McCloy Consulting & Robert Bray Associates